A suspect in a DEA agent's murder is spirited to the U.S.

During the late afternoon of April 3, a small private plane landed at El Paso International Airport and disgorged a garish passenger, accompanied by three grim-faced men. Clad in a sports shirt, country-club-plaid slacks and loafers, the 6-ft. 1-in., 310-lb. Mexican sauntered over to a group of men waiting on the tarmac, smiled as if he were collecting a golf trophy and proffered his hand. "I am Dr. Humberto Alvarez Machain," he announced. "I know who you are," snapped special agent Hector Berrellez of the U.S. Drug Enforcement Administration. "You have the right to remain silent."